Stovepipe-casing coupling



N'ov. 6, 1928.

1,690,562 O. C. TROUT STOVEPIPE CASING COUPLING Filed June 15, 1925 2 Sheets-Sheet 1 Arrone/(Erl Nov. 6, 1928. 1,690,562

' o. c. TROUT sTovEPiPE cAsING coUPLINe 2 sheets-sheet 2 Patented Nov. 6, 1928.

`UNrrlzo STATES OLlVER C, TROUT, OF LOS ANGELES, CALIFORNIA, ASSIGNOR, BY MESNE ASSIGNMENTS,

PATENT goFF.IC=....;..

TO LOS ANGELES MANUFACTURING COMPANY, ING., OF LOS ANGELES., CALIFORNIA,

A CORPORATION OF CALIFORNIA..

V.stoven.1?.EfCAsiliGf coussins.

.applicaties medien@ is. 1325. ser-iai Np. 36,841.

` sheets being rolled into cylindrical shape,

oneoutside the other. The ordinary screw` type casing;` although it is very satisfactory when installed, is very heavy and 'cumbeijw some to handle, and the first costthereofv is very great. .Stove pipe casing very light 'as compared With screw .Csiugand is handled with facility. Further, stovepipe cas-` ing is much cheaper than screrv casing. lith stovepipe casing, ldifficulty 1s encountered with the couplings fory securing them to` gether, It is necessary that these lcouplings be su'liiciently strong to. endure strains placed upon the casing, that they be fluidtight, and that they can be installed in place in the field without the use of special tools or nelilf ing;` equipment.

It is an object of my invention to providek a coupling for stoyepipe easing` `of-this characier which `is absolutely i'lnidtight.

It is also an obj ect oit my invention to provide a ,eouplinpgof this character which is sim ple in construction and very easy to in- Stall; n

It is a still further object o my invention to provide a stovepipe ,coupling1 Which is very strong and 4will endure all tensile strains placed thereupon. y s v Other Objects and advantages of the invention will be made evident hereinafter.

. Referring; to the drawingsin which l illus trate preferred linien of my invention.

Fig, lis a fragmentary vertical sectional View `of stovepipe casing coupling, the cou pliug in this view being'assembzled and .coupling a pair of stovefpipe ,casing members together.

Fig, 2 is a section taken on the line f-Q of Fig. A1. Y p

Fig. 3 is a section taken on the line` lflof Stovepne @seins iS` ,casingy coupling.

Fig. 'f1 is a perspective View partially scctioned showing the ilange members of my invention secured on the ends ot casing mem4T bers and showing the members in position for assembly. s

F ig. 5 isa `peiSP,@Ctive view partially` in section oi the securing collar O the coupling of my invention.

The 4form of my invention shown in theA drawings consists oiV a pair of flange mem-` bers 11, `thesesiiange members being secured at the ends of stovepipe casing members 13 and 14. The stovepipe casing members 13 [and 14 are laminated, or formed'oi a plurality Ol laminations such as theinner and outer' layers of sheet metal 1G endl? which are tubular and are telescoped and secured together as shown in thedraiyings. The ends of the outer members 17 are vbent externally back upon the member 17 in a manner to provide an annular lidgellhaving Shoulder 20. The flange memberslll are each com- )osed oi sections 21 and 22 so that they may be installed in place. lVhen these `flanges are in place, the ridges 19 extend into inner annular channelsQll of the flange members '11, andthe shoulders 2O `engage with shoulders 25 termed` in the channels 24. After the memhers21 and 22- are placed on the casings 13and1et, `they are Welded together at the abuttingA edges as indicated at 26 and 27 in Fig. The ends 28 oi the iange members 11` are then Welded to the outer members 1T oit' the casings 13 and 14; shown clearly in Fig. 1. The Welding of the portions 21 and together and the Welding of the `complete flanges 11 to the casing members .serves to permanently secure them in place. Each of the fiangesfll has an outer annular channel 81 which provides shoulders 32 and 33. Adjacent to the shoulder 33 isy an annular lip which rests in a position as shown in Fig. t previousto the complete assembling of the The casings 13 `and 14k are arrangedtd getherso that 4a cylindrical projection' 16?]- of thejinner tube 1,6 of the casing lmember 1d extends insile both ,of the flanges 11 and inside the end. ofthe outer tube 17 .of the casing rmember. 13,the endetl this cylindrical por- Fig. 1 these recesses cooperate to provide a gasket channel 11b. A gasket 35 formed from a suitable gasket material is arranged in the gasket channel 11b. This gasket member 35 has a main portion 36 and a lip portion 37.

A collar 40 which is split at 41 is arranged in place as shown in Fig. 1 after the sections 13 and 14 have been placed together. Head The easing members 13 .and 14 are first placed so as to provide the annular ridges 19 and so that the member 14 provides the cylindrical projection 16a.` The portions 21 and 22 of the flanges 11 are then installed in place, as previously described, and are then securely Welded in place. The gasket member is then extendedonto the cylindrical projection 1oa so that the body portion 36 thereof rests in the annular recess 11a formed at the end of the flange 11 on the member 14. 'As shown in of the channel 11b.

4ig. 4 the lipf37 of the gasket member 35 extends substantially paralleltothe cylindri# cal extension 16". The casings 13 and 14 are then brought into the positionr shown in Fig. 4 and areplaced together so that the cylindrical extension 13a extends inside the flange 11 of the member 13 and soothe. the portion 1G abuts the end of the inner member 1G of the casing member 13 as indicated at 1,6b in Fig.v

1. The face of the recess 11 of the flange member 11 which is arranged yon the casing 13 engages the end of the lip 3? of the gasket 35, forcing it from the position shown in Fig. 4 into the position shown in Fig'. 1. At this time the gasket 35 is partially compressed and is forced pressurably against the -bottom The collar which is shown in detail in Fig. 1 is then installed in place. This 'collar is extended over either of the casings 13 or 14 beforethey are assembled together; the collarbeing split permits an enlargementfor suchk positioning. The collar moved into a position so that the head portions'43 will fall y into the vcharmels 31. The collar is then allowed toreturnv to its natural position, at

. Which time these head portions restin the outer channels. The lips 34 are then peened over the edges 47 of the collarf40 as shown 1n Fig. 1, and the collar 40 is novelly retained in place by the lips 34. The coengagement between the shoulders 32 and44 securely locks the `flanges 11 and thus the cas ing sections 13and 14 together. These shoulders provide a very strong'locking means Which is capable of enduring Aany strains placed upon a casing of this character While in use in an oil Well.

The joint at the coupling is rendered -absolutely fluidtightby the provision ofthe gasket 35. This gasket, being compressed against the bottom ofthe channel 11h, prevents leakage. If any fluid inside the casing should leak around the extension 16m it would enter the channel 11J and a pressure thereof Would tend to force the gasket member 35 into greater pressurable contact With the bottom of the -channel 11b, thus increasing its eihciency. The casing sections 13 and 14 and the flanges "11 are co-axially aligned at all times by the projection 16a. K

My invention is very simple in its construction, comprising essentially four parts, tivo flange members, a gasket member and a collar. lt is obvious that these parts can be cheaply produced and lthat such parts are kvery easy and quick to install.

I claimas vmy invention:

1. In a coupling forcasing, the comb1nation of: a pair of flanges,r said flanges being Vsecured to ends of casing members; a collar forsecuring said flanges together; and an annular-lip formed on each of said flanges,

saidlipsbeing adaptedto engage said collar, j

thus securing same in place.`

2. In combination: a pair of tubular inem-y bers; annular ridges,'one ofsaid annular ridges being formed on each tubular member; a pair of flanges, one of said lianges being secured to each of said tubular members, each flange having a channel into which one of said ridges extends; a cylindrical projection extending inside said flanges and said ridges; and a collar extending around said flanges for securing them together, said collar having heads extending into outer chan nels formed in said flanges.

3. In a stovepipe Well casing comprising primary and secondary sections, each of which has inner and outer tubes telescoped and secured together, the combination of: a female coupling member provided upon an yend of said primarysection and having a flange member secured upon the outer tube thereof` so as to extend axially therebeyond; a male coupling member formed upon anend of said secondary section and having a flange member secured upon the outer tube thereof anda rsleeve-'like projection forming a con- 4. In a stovepipe `Well casing comprising Al U primary and secondary sections, each of which has inner and outer tubes telescoped and secured together, the combination of: a female coupling member provided upon an end of said primary sect-ion and having a flange member secured upon the outer tube thereof so as to extend axially therebeyond; a male coupling member formed upon an end of said secondary section and having a flange member secured upon the outer tube thereof and a sleeve-like projection forming a continnation of the inner tube thereof and extending Within and axially beyond said last-inentioned flange member, said male and female `coupling' members being adapted to fit together so that said male projection extends Within said first-mentioned flange member to align said flange members together; and a collar engaging outer surfaces of said flange members to unitetliese together, said flange members having collar securing portions Vwhich extend into restricting position rela` tive to saidl collar.

5. In a casing comprising sections of laminated tubing, the combination of: a pair of flanges secured to adjacent ends'of said sec-k tions upon the outer laminations thereof; a

collai securing said flanges together; and a projection formed 'upon one of said sections by a continuation of the inner lamination thereof, said projection extending inside of said flanges to axially align the sections.

i 6. In a casing comprising sections of laminated tubing, the combination of: a pair of flanges secured to adjacent ends of said sections upon the out-er laininations thereof; ra

collar securing said flanges together; and a y projection formed upon one of said sections by a continuation of the inner lamination thereof, said projection extending. inside of said flanges to axially align the sections and into an annular recess formed in the opposite end of said tubing by a discrepancy iii the positions of the ends of adjacent laininations at said opposite end of said tubing.

'i'. In a stovepipe Well` casing, the combina tion of: a double-Wall primary section having its outer Wall extended beyond its inner wall to form an annular recess; a doublewail secondary section having' its innery wall extended beyond its outer Wall to form a centering projection inter-meshing with said recess of said primary section; annular flanges secured upon the outer Wall of the respective sections, each of said flanges extending beyond the outer Wall to Which it is secured, whereby inner surfaces of both flanges closely contact the centering projection of the secondary section; and means for securing the flanges against axial separation.

S. In a stovepipe Well casing, the combina tion of: a double-Wall primary section having its outer Wall extended beyondits inner Wall to form an annular recess; a double-Wall secondary section having'its inner Wall extended beyond its outer Wall to form a centerinp'q` projection inter-meshing with said recess of saidprimary section; annular flanges secured upon the outer Wall of the respective sections, each of said flanges extending beyond the outer Wall to which it is secured, whereby inner surfaces of both flanges closely cont-act the centering projection of the secondary sect-ion; a collar engaging both flanges to maintain the sections against axial separation; and means formed on the respective flanges to engage and prevent removal of said collar.

9. In a stovepipe Well casing, the combination of: a double-Wall primary section having its outer Wall extended beyond its inner Wall to forni an annular recess and ybent back upon itself to provide an annular ridge; adouble- Wall secondary section having its outer Wall bent back vupon itself to foim an annular ridge and its inner Wall extended beyond its outer Wall to provide a centering projection engaging with the recess of the primary section; annular flanges secured upon the outer Wall ofthe respective sections, each of said flanges having an internal channel into which the annular ridge of the respective section engages and each flange being extended beyond the outer Wallto which it is secured whereby both flanges beyond said outer Walls closely contact said centering projection of the primary section; and means for securing the flanges against axial separation.

l0. In a stovepipe Well casing, the combinationof: a double-Wall primary sect-ion hav ing its outer Wall extended beyond its inner Wall to forni an annular recess and bent back upon itself to provide an annular ridge; a doubleeivall, secondary section having its outer wall bent back upon itself to form an annular ridge and its inner wall extended beyond its outer Wall to provide a centering project-ion engaging with the recess of the primary section; annular flanges secured upon the oiitei.\vall of the respective sections, each of said flanges having an internal channel into which the annular ridge of the respective section engages and each flange being extended beyond the outer Wall to which it is secured whereby both flangesbeyond said outer Walls closely contact said centering pron jection of the primary section; a collar en gaging both flanges to maintain the sections against axial separation; and means formed on the respective flanges to engage and preV vent removal of said collar.

In testimony whereof, I have liereuntoset my hand at Los Angeles, California, this 3rd day of June, 1925. i

OLIVER C. TROUT. 

